Remove the first-element special treatment from Selector unique
Remove the first-element special treatment from Selector unique

ridixcr/prototype,ridixcr/prototype,ldf7801528/prototype,savetheclocktower/prototype,kangax/prototype,292388900/prototype,lamsieuquay/prototype,loduis/prototype,erpframework/prototype,GunioRobot/fusejs,ShefronYudy/prototype,loduis/prototype,jgornick/fusejs,kensnyder/fusejs,sstephenson/prototype,sdumitriu/prototype,kangax/prototype,Gargaj/prototype,lamsieuquay/prototype,ShefronYudy/prototype,sdumitriu/prototype,leafo/prototype,Gargaj/prototype,jgornick/fusejs,fashionsun/prototype,kensnyder/fusejs,ldf7801528/prototype,baiyanghese/prototype,Jiasm/prototype,sstephenson/prototype,ldf7801528/prototype,madrobby/prototype,292388900/prototype,lamsieuquay/prototype,mc0/fusejs,Jiasm/prototype,fashionsun/prototype,Gargaj/prototype,loduis/prototype,sdumitriu/prototype,GunioRobot/fusejs,erpframework/prototype,Jiasm/prototype,fashionsun/prototype,292388900/prototype,madrobby/prototype,sstephenson/prototype,ridixcr/prototype,savetheclocktower/prototype,ShefronYudy/prototype,leafo/prototype,erpframework/prototype,mc0/fusejs,baiyanghese/prototype